During exploration of the mechanism of circMAP2K2 upregulation in gastric cancer, Circular RNA Interactome (https://circinteractome.nia.nih.gov/) analysis revealed that EIF4A3 had seven binding sites in the upstream region of the MAP2K2 mRNA transcript, which were concentrated in a region of 800 bases. This evidence concerns the gene EIF4A3 and gastric cancer.